“What is the difference between a U1 a U3 or U10? What does this mean?”

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• Guaranteed read/write speeds. Certain devices require a minimum speed, such as DSLR cameras or gaming systems. There is no U10 class, as a new class was developed for the higher speed, the V class. However, there is a C class 10. Sounds confusing? Breakout below. C-Class C2-2MB/sec C4-4MB/sec C6-6MB/sec C10-10MB/sec U-Class U1-10MB/sec U3-30MB/sec V-Class V6-6MB/sec V10-10MB/sec V30-30MB/sec V60-60MB/sec V90-90MB/sec

  Answered by Petey 7 years ago

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• The difference is data transfer speed and quality of data.

  Answered by Leroy 7 years ago

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